v0.2.0
* with_grant=true in grant_usage is no longer restricted to superuser * harden superuser detection in revoke_usage by checking pg_roles * add cascade to revoke statements * column-specific grant statements need matching revoke statements
* with_grant=true in grant_usage is no longer restricted to superuser * harden superuser detection in revoke_usage by checking pg_roles * add cascade to revoke statements * column-specific grant statements need matching revoke statements